Higgless W unitarity from decoupling deconstruction

Evans, Nick and Membry, Phil (2004) Higgless W unitarity from decoupling deconstruction. Pre-print, 1-10.


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Original Publication URL: http://arxiv.org/abs/hep-ph/0406285


Recently there has been interest in electroweak models on a five dimensional interval that break the symmetry without a higgs boson. By warping the metric of the interval it may be possible to avoid experimental bounds on extra W bosons and delta rho. Five dimensional models necessarily require an explicit UV cut-off to remain perturbative, such as that provided by deconstruction. We study a simple deconstruction of this scenario with a chain of SU(2)^N+1 x U(1)_Y groups linked by bi-fundamental higgs. There are two interesting decoupling limits of this model, when the higgs vevs are taken large and when the SU(2) couplings grow, which might provide a perturbative realization. In fact it is very challenging to satisfy all the experimental bounds and the most compatible scenario has both a higgs and a relatively strongly coupled new W both close to 2 TeV .

Item Type: Article
Additional Information: arXiv:hep-ph/0406285v2
Related URLs:
Subjects: Q Science > QC Physics
Divisions : University Structure - Pre August 2011 > School of Physics and Astronomy
ePrint ID: 57199
Accepted Date and Publication Date:
25 June 2004Published
Date Deposited: 13 Aug 2008
Last Modified: 31 Mar 2016 12:38
URI: http://eprints.soton.ac.uk/id/eprint/57199

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